30025632 has 144 divisors (see below), whose sum is σ = 98939232. Its totient is φ = 7902720.

The previous prime is 30025607. The next prime is 30025657. The reversal of 30025632 is 23652003.

It is an interprime number because it is at equal distance from previous prime (30025607) and next prime (30025657).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 30025599 and 30025608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60907 + ... + 61397.

It is an arithmetic number, because the mean of its divisors is an integer number (687078).

Almost surely, 2^30025632 is an apocalyptic number.

30025632 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30025632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49469616).

30025632 is an abundant number, since it is smaller than the sum of its proper divisors (68913600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30025632 is a wasteful number, since it uses less digits than its factorization.

30025632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 30025632 is about 5479.5649462343. The cubic root of 30025632 is about 310.8117193860.

Adding to 30025632 its reverse (23652003), we get a palindrome (53677635).

The spelling of 30025632 in words is "thirty million, twenty-five thousand, six hundred thirty-two".